How much energy would be required to break a helium nucleus into its constituents, two protons and

Question:

How much energy would be required to break a helium nucleus into its constituents, two protons and two neutrons? The rest masses of a proton (including an electron), a neutron, and helium are, respectively, 1.00783u, 1.00867u, and 4.00260u. (This energy is called the total binding energy of the 4 He 2 nucleuses